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DRV8434S SPI Stepper Motor Driver Carrier, 2A Max. Current Limit
This breakout board for TI’s DRV8434S microstepping bipolar stepper motor driver operates from 4.5 V to 48 V and can deliver up to approximately 1.2 A continuous per phase without a heat sink or forced air flow (2 A peak). The SPI interface allows configuration of the current limit, step mode (11 step modes from full-step through 1/256-step), decay mode, and stall detection. The driver also features built-in protection against under-voltage, over-current, and over-temperature conditions. This version of has the maximum current limit set to a fixed 2A, and SPI can be used to set the actual current limit to any of 16 evenly spaced values from 125 mA up to 2 A (i.e. in increments of 125 mA).
Alternatives available with variations in these parameter(s): current limit control header pins soldered? Select variant…
Compare all products in DRV8434x Stepper Motor Driver Carriers or 16-pin Stepper Motor Drivers.
| Description | Specs (14) | Pictures (8) | Resources (8) | FAQs (4) | On the blog (1) |
|---|
Dimensions
| Size: | 0.6″ × 0.8″ |
|---|---|
| Weight: | 1.3 g1 |
General specifications
| Minimum operating voltage: | 4.5 V2 |
|---|---|
| Maximum operating voltage: | 48 V3 |
| Continuous current per phase: | 1.2 A4 |
| Maximum current per phase: | 2 A5 |
| Minimum logic voltage: | 1.8 V6 |
| Maximum logic voltage: | 5.5 V7 |
| Microstep resolutions: | full with 100% current, full with 70% current, non-circular 1/2, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/256 |
| Current limit control: | fixed 2A max with SPI scaling |
| Reverse voltage protection?: | N |
| Header pins soldered?: | N |
Identifying markings
| PCB dev codes: | md43b |
|---|---|
| Other PCB markings: | 0J13692 |
Notes:
- 1
- Without included optional headers.
- 2
- Inputs below 6 V reduce the maximum settable current limit. With 4.5 V in the maximum settable limit is 1.75 A.
- 3
- Not intended for use with 48V batteries, which can be well above nominal when fully charged.
- 4
- Without a heat sink or forced air flow.
- 5
- With sufficient additional cooling.
- 6
- Logic high threshold varies for two-state, tri-state, and quad-state pins. See datasheet for details.
- 7
- Absolute maximum voltage on any input is 5.75 V.
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